mirror of
https://github.com/roadwy/DefenderYara
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roadwy
14 lines
857 B
Plaintext
14 lines
857 B
Plaintext
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rule HackTool_Linux_MSFPerlShell_B{
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meta:
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description = "HackTool:Linux/MSFPerlShell.B,SIGNATURE_TYPE_CMDHSTR_EXT,04 00 04 00 04 00 00 "
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strings :
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$a_00_0 = {70 00 65 00 72 00 6c 00 } //1 perl
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$a_00_1 = {75 00 73 00 65 00 20 00 49 00 4f 00 3a 00 3a 00 53 00 6f 00 63 00 6b 00 65 00 74 00 3a 00 3a 00 53 00 53 00 4c 00 3b 00 } //1 use IO::Socket::SSL;
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$a_00_2 = {3d 00 66 00 6f 00 72 00 6b 00 3b 00 65 00 78 00 69 00 74 00 2c 00 69 00 66 00 28 00 } //1 =fork;exit,if(
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$a_00_3 = {77 00 68 00 69 00 6c 00 65 00 28 00 73 00 79 00 73 00 72 00 65 00 61 00 64 00 28 00 24 00 63 00 2c 00 24 00 69 00 2c 00 38 00 31 00 39 00 32 00 29 00 29 00 7b 00 73 00 79 00 73 00 77 00 72 00 69 00 74 00 65 00 28 00 } //1 while(sysread($c,$i,8192)){syswrite(
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condition:
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((#a_00_0 & 1)*1+(#a_00_1 & 1)*1+(#a_00_2 & 1)*1+(#a_00_3 & 1)*1) >=4
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} |